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Provides a direction-aware interface for analysing bivariate sufficiency statements from empty-space frontier patterns. Logical sufficiency directions (high or low levels of a condition and outcome) are kept separate from the physical location of the empty corner in the scatter plot. Computation is delegated to version 5 of the 'NCA' package based on Dul (2016) <doi:10.1177/1094428115584005>, using the contraposition between necessity and sufficiency. Threshold tables are computed in actual units and converted by this package, so percentage, percentile and standard-deviation scales follow one stated reporting convention in every sufficiency direction. Includes tidy summaries, threshold rules, plots, random-data generation, permutation tests, and power analysis. An ordinary least-squares line can be drawn beside the frontier as a central-tendency reference; it is an average-effect summary and never a component of a sufficiency claim. An empty-space pattern alone does not establish causality or deterministic sufficiency.
| Version: | 0.4.3 |
| Depends: | R (≥ 3.5.0) |
| Imports: | ggplot2 (≥ 3.4.0), NCA (≥ 5.0.2), stats, utils |
| Suggests: | testthat (≥ 3.0.0) |
| Published: | 2026-09-18 |
| DOI: | 10.32614/CRAN.package.SCAtools |
| Author: | Young Chan [aut, cre] |
| Maintainer: | Young Chan <youngchanresearcher at gmail.com> |
| BugReports: | https://github.com/youngchanresearcher/SCAtools/issues |
| License: | GPL (≥ 3) |
| URL: | https://github.com/youngchanresearcher/SCAtools |
| NeedsCompilation: | no |
| Citation: | SCAtools citation info |
| Materials: | README, NEWS |
| CRAN checks: | SCAtools results |
| Reference manual: | SCAtools.html , SCAtools.pdf |
| Package source: | SCAtools_0.4.3.tar.gz |
| Windows binaries: | r-devel: not available, r-release: not available, r-oldrel: SCAtools_0.4.3.zip |
| macOS binaries: | r-release (arm64): SCAtools_0.4.3.tgz, r-oldrel (arm64): SCAtools_0.4.3.tgz, r-release (x86_64): SCAtools_0.4.3.tgz, r-oldrel (x86_64): SCAtools_0.4.3.tgz |
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